Post Utme Unilag 2021 Physics Question 2

Practice objective / multiple choice question 2 from the 2021 Post Utme Unilag Physics examination.

Post Utme Unilag 2021 Physics Objective / Multiple Choice
Question 2 POST_UTME_UNILAG • 2021 • PHYSICS • objective
Post Utme Unilag 2021 Physics Question 2 diagram

A convex lens of focal length 20 cm is placed in contact with a concave lens of focal length -30 cm. What is the focal length of the combination?

Answer Options

Correct Answer A. \( f = 10 , \text{cm} \)
B. \( f = -10 , \text{cm} \)
C. \( f = 15 , \text{cm} \)
D. \( f = -15 , \text{cm} \)
Correct Answer
A
Correct Option:
\( f = 10 , \text{cm} \)

About This Question

This is Post Utme Unilag 2021 Physics Question 2. It is one of the objective questions from the 2021 Post Utme Unilag Physics examination.

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